Improvement in stump-extractors



M.F., M. W. 8: H. A. PARRISH. Stump-Extractor.

No. 221,699. Patented Nov. 18, I879.

Inventors:

Jtrorney:

NJEIERS, FHOTO-UTQOGRAPHEH, WASHINGTON, n c

tion.

UNITED STATES PATENT OEEIoE IVIAROUS F. PARRISH, OF KALAMAZOO, MYRON W.PARRISH, OF JAOI SON,

AND HOMER A. PARRISH, OF KALAMAZOO, MICHIGAN.

'IMPROVEM ENT IN STUM P-EXTRACTORS.

Specification forming part of Letters Patent No. 221,699, dated November18, 1879; application filed October 3, 1879.

To all whom it may concern.-

Be it known that we, MARoUs' F. PARRISH and HOMER A. PARRISH, of Kalamazoo, county of Kalamazoo, State of Michigan, and MYRON W. PARRISH, ofJackson, county of Jackson, State of Michigan, have invented new anduseful Improvements in Stump and Grub EX- tractors, of which thefollowing is a specifica- Our invention relates to that class of stumpmachines which are constructed with an elevated beam, across which issecured a lever at right angles with the same, especially to formerinventions known as the N. Parrish stump and grub extractor, of which weare the present owners.

Heretofore our machines have been constructed with the lever fastenedstationary to a rocking shaft at right angles with the beam. Also, thelifting-chain has been secured to the end of the lever back of thefulcrum, and in other manners. To these two points the object of ourinvention relates.

First, we have found, in endeavoring to pull stumps located near to oneside of the machine-frame, and also when hitched to a root on one sideof the stump, that the lever is necessarily inclined toward the point ofattachment to the stump or root, in which case the lever and gearingtrequently'break. Also, with the stationary lever, as described, when astump or grub is too far removed from the lifting-chain to. be operatedon the whole machine must be moved forward. To obviate theseobjectionable features we have constructed our machine with the leverswiveled onto the rocking shaft by means of bolt running through it, onwhich it turns.

Second, we find the old manner of attaching. the lifting-chainexceedingly inconvenient, requiring great exertion in shortening orlengthening the same preparatory 'to hitching to a stump. This we havegreatly obviated by a pulley and perforated plate in the end of thelever back of the fulcrum, and by Isoecuring one end of thelifting-chain to the cam.

In the accompanying drawings, forming a part of this specification,Figure 1 is a perspective view of a device embodylng our 1mprovements.Fig. 2 is a top view of rocking shaft and lever at point of swiveling.Fig. 3 is a side view of device, and Fig. 4: the perforated platesecuredon under side of lever. 1 E is the beam, on which are secured theboxheads D, and G is the rocking shaft located in said box-heads. B isthe lever; A, the bolt through the same, the lower end of which issecured into the rocking shaft 0. In the top side of said shaft 0 is amortise, having semi-elliptic ends a a, in which mortise the lever B isplaced, when, on account of ends a a, it can only swing around to agiven point.

The rocking shaft 0 has a flat surface on top, with holes I) 1), intowhich pins can be inserted to efi'ect the same purpose as the ellipticends a a in the mortise, thereby facilitating the turning of the leverround end for end when the pins are removed, for the purpose of pullingother contiguous stumps, as previously specified.

Other desirable methods of securing the lever B to the shaft 0, and ofpreventing its turning beyond a given point, and which will allow thelever B to be turned end for end, may be used and still be comprehendedin our invention.

I is the lifting-chain secured to a bolt in the beam E at F. H is thepulley or wheel in the end of lever B, over which the lifting chain I isplaced; J, the plate, having a cir cular connected with an angularelongated perforation through the same, said plate being secured to theunder side of rear end of lever B under pulley H, the use of this platebeing to hold the chain I at any given length by its running through theperforation, and its links catching in the elongated portion 0 of thesame.

L is the draftchain, with its pulleys, &c., to which the power isattached; N, bed-pieces to frame; 0, short chain to hold the stump whenpartially raised, in order to slack up and take a new hitch by hookingit to the lifting-chain I, as seen in Fig. 3.

What we claim is 1. A lever located at right angles across withlifting-chain I, substantially as shown and described, for the purposeset forth.

MYRON W. PARRISH. MARCUS F. PARRISH. HOMER A. PARRISH.

Witnesses:

LUTHER WILLIAMS, CHESTER H. DUNBAR.

